Krümmer

Krümmer is a German term that translates to "manifold" in English, most commonly referring to an exhaust manifold or an intake manifold in the context of internal combustion engines.

An exhaust manifold collects exhaust gases from multiple cylinders of an engine and directs them into a single pipe, which then leads to the rest of the exhaust system. This component is crucial for the efficient removal of combustion byproducts. Materials used for exhaust manifolds typically include cast iron or stainless steel to withstand high temperatures and corrosive exhaust gases.

An intake manifold, on the other hand, distributes the air-fuel mixture (in older engines) or just air (in modern fuel-injected engines) from the throttle body to the individual intake ports of each cylinder. Its design plays a significant role in engine performance, influencing factors like torque and horsepower by controlling the flow and distribution of the intake charge. Intake manifolds can be made from materials such as aluminum, cast iron, or various plastics.

The term Krümmer can also be used more generally to describe any component that bends or curves, such as a pipe bend. However, in automotive and engineering contexts, its primary meaning relates to engine manifolds. The proper functioning of both intake and exhaust Krümmer is vital for the overall efficiency and performance of an engine.